Test #2 Flashcards
(33 cards)
What is not involved when using flanges?
Welding
What are the 3 different faces of a flange?
•Flat
•Ring Type Joint
•Raised
What kind of bolts are needed when using flanges?
•Stud
•Machine Bolt
Name the pound rating used with flanges.
•#150
•#300
•#400
•#600
•#900
What relationship is important when finding the pound rating of flanges?
•pressure and temperature relationship
What are some of the different types of flanges?
•Oriface
•Reducing
•Socket
•Slip on
• Threaded
What three dimensions are needed for flanges?
•Thickness of base
•Length
•Outside diameter
What are need for flange to flange assembly and how thick are they typically?
•Gaskets, 1/8”
What materials can a gasket be made of?
•Rubber
• Led copper
•Metal
•Neoprene
How many in a pack do gaskets im come in?
•Four
What is a valve?
•Controls flow of commodity
What are the 3 parts of a valve?
•Handwheel
•Gate
•Stem
What are some ways valves connected?
•Screwed
•Socket Weld
•Beveled
•Flange
What are the 2 different stems? What are the differences
•nonrising, the stem and handle move together
•rising, the handle only moves along the stem
What can be used when a valve is in a high place?
•Chain Puller
•Accuator
Describe a gate valve
•bow tie symbol
•never inbetween off or on
Describe globe valve
•Think of a faucet
•Bow tie with a dot filled in center
Describe angle valve
•90 degree angle
•Commodity goes from bottom to the top
Describe check valve
•pressure of commodity keeps it down
•think of toilet
•swing & lift
•two vertices lines with an arrow
Describe a ball valve
•ball sitting w. a wrench handle to help commodity flow
•think of work
Describe butterfly valve
•has a wafer
•never is fully closed
•two vertical line with a diagonal line in middle
Describe a relief valve
•allows steam to get out
•pressure opens the valve
•has a spring
•like a angle valve but with a note
Describe a control valve
•makes precise changes
What are two types of tanks and what do they do?
•vertical- breaks things down
•horizontal- accumulator (storage)